Purge All Cache is gone #3112

Prerequisites

• I verified that this is not a filter list issue. Report any issues with filter lists or broken website functionality in the uAssets issue tracker.
• This is NOT a YouTube, Facebook or Twitch report. These sites MUST be reported by clicking their respective links.
• I performed a cursory search of the issue tracker to avoid opening a duplicate issue.
• The issue is not present after disabling uBO in the browser.
• I checked the documentation to understand that the issue I am reporting is not normal behavior.

I tried to reproduce the issue when...

• uBO is the only extension.
• using a new, unmodified browser profile.

Description

I'm trying to purge all cache in Ublock and I've googled the issue and it seems like in the last month, a lot of people lost the ability to purge their cache.
The button is just gone.

A specific URL where the issue occurs.

chrome-extension://cjpalhdlnbpafiamejdnhcphjbkeiagm/dashboard.html#3p-filters.html
chrome-extension://cjpalhdlnbpafiamejdnhcphjbkeiagm/dashboard.html#1p-filters.html
chrome-extension://cjpalhdlnbpafiamejdnhcphjbkeiagm/dashboard.html#settings.html

Steps to Reproduce

There were no steps.

Expected behavior

The button to purge cache should be there.

Actual behavior

The button to purge cache is gone.

Configuration

uBlock Origin: 1.55.0
Chromium: 121
filterset (summary):
 network: 122440
 cosmetic: 45424
 scriptlet: 20422
 html: 0
listset (total-discarded, last-updated):
 default:
  user-filters: 0-0, never
  easylist: 80401-14, 3m Δ
  easyprivacy: 50143-36, 3m Δ
  plowe-0: 3786-1183, 7d.16h.5m
  ublock-badware: 7849-140, 3m Δ
  ublock-filters: 37159-211, 3m Δ
  ublock-privacy: 998-6, 3m Δ
  ublock-quick-fixes: 199-4, 3m Δ
  ublock-unbreak: 2206-32, 3m Δ
  urlhaus-1: 7320-0, 15h.46m
filterset (user): [empty]
userSettings:
 contextMenuEnabled: false
hiddenSettings: [none]
supportStats:
 allReadyAfter: 391 ms (selfie)
 maxAssetCacheWait: 131 ms
 cacheBackend: browser.storage.local